INDEX RULE BOOK AEX All-Tradable Alternative Weighting

INDEX RULE BOOK AEX All-Tradable Alternative Weighting Version 15-01 Effective from 1 December 2015 indices.euronext.com

Index 1. Index Summary 1 2. Governance and Disclaimer 3 2.1 Indices 3 2.2 Supervisor 3 2.3 Compiler 3 2.4 Cases not covered in rules 3 2.5 Rule book changes 3 2.6 Liability 3 2.7 Ownership and trademarks 3 3. Publication 4 3.1 Dissemination of index values 4 3.2 Exceptional market conditions and corrections 4 3.3 Announcement policy 4 4. Calculation 5 4.1 Calculation of the price index 5 4.2 Currency conversion 5 4.3 Total return index calculation 5 5. Index reviews 6 5.1 General aim and frequency of reviews 6 5.2 Index universe and selection principle 6 5.3 Periodical update of weighting 6 6. Corporate Actions 7 6.1 General 7 6.2 Removal of constituents 7 6.3 Split up / spin-off 7 6.4 Early inclusion of non-constituents 7 6.5 Dividends 8 6.6 Rights issues and other rights 8 6.7 Bonus Issues, stock splits and reverse stock splits 8 6.8 Changes in number of shares or Free Float 8 7. Index Calculation Formulas 9 8. Definitions 10 8.1 Index Steering Committee 10 8.2 Compiler 10

1. INDEX SUMMARY Factsheet Index names Index type Underlying Index Index governance structure Eligible stocks Selection AEX All-Tradable Alternative Weighting AEX All-Tradable Alternative Weighting Index Price indices; Net return index and Gross return index versions are also available. AEX All-Tradable The index follows the selection of the Underlying Index, which is under supervision of an independent steering committee. Euronext acts as the Compiler and is responsible for the day-today management of the index. Companies included in Underlying Index. Same composition as the Underlying Index on review date Number of constituents Maximum 75 Weighting Based on Free Float adjusted market capitalization. The Free Float is rounded up to the next multiple of 5%. Capping 9% and maximum 36% as total of all companies weighting more than 4.5% Review of composition Rebalancing Review of number of shares Base Currency Follows annual/quarterly review scheme of Underlying Index. Effective after the third Friday of March, June, September and December. Quarterly. Effective after the third Friday of March, June, September and December. n.a. Euro Note: the factsheet is a summary of the rule book for information purposes only. The text of the rule book is leading. 1

Reference Data Index name Isincode Mnemo AEX All-Tradable Alternative Weighting AEX All-Tradable Alternative Weighting NR AEX All-Tradable Alternative Weighting GR Bloomberg Code Reuters code Base date Base value Publication since NL0010614525 AETAW AETAW.AETAW 31-12-04 700 9-12-13 NL0010614533 ATAWN ATAWN.ATAWN 31-12-04 700 9-12-13 NL0010614541 ATAWG ATAWG.ATAWG 31-12-04 700 9-12-13 2

2. GOVERNANCE AND DISCLAIMER 2.1 INDICES This rule book applies to the following indices(hereinafter Index ) owned by Euronext N.V. or its subsidiaries (hereinafter jointly Euronext ): AEX All-Tradable Alternative Weighting index The Underlying Index (hereinafter Underlying Index ) is the AEX All-Tradable index 2.2 SUPERVISOR The AEX Steering Committee acts as independent Supervisor of the Underlying Index. The Supervisor is responsible for monitoring the selection of constituents for the index and ensuring that the index offers a reliable and representative view of the market. 2.3 COMPILER Euronext is the compiler of the index ( Compiler ). The Compiler is responsible for the day-to-day management of the index and is also responsible for decisions regarding the interpretation of these rules. 2.4 CASES NOT COVERED IN RULES In cases which are not expressly covered in these rules, operational adjustments will take place along the lines of the aim of the index. Operational adjustments may also take place if, in the opinion of the Compiler, it is desirable to do so to maintain a fair and orderly market in derivatives on this index and/or this is in the best interests of the investors in products based on the index and/or the proper functioning of the markets. The Compiler will report to the Supervisor if it took a decision about a case which is not specifically covered in the rules for comments and review. 2.5 RULE BOOK CHANGES These rules may be supplemented, amended in whole or in part, revised or withdrawn at any time. Supplements, amendments, revisions and withdrawals may also lead to changes in the way the index is compiled or calculated or affect the index in another way. The Compiler will submit all decisions regarding supplementing, amending, revising or withdrawing these rules to the Supervisor for recommendations or approval. 2.6 LIABILITY Euronext, the Compiler and the Supervisor are not liable for any losses resulting from supplementing, amending, revising or withdrawing the rules for the index. The Compiler will do everything within its power to ensure the accuracy of the composition, calculation, publication and adjustment of the index in accordance with relevant rules. However, neither Euronext, nor the Compiler, nor the Supervisor are liable for any inaccuracy in index composition, share prices, calculations and the publication of the index, the information used for making adjustments to the index and the actual adjustments. Furthermore, Euronext, the Compiler and the Supervisor do not guarantee the continuity of the composition of the index, the continuity of the method of calculation of the index, the continuity of the dissemination of the index levels, and the continuity of the calculation of the index. 2.7 OWNERSHIP AND TRADEMARKS Euronext owns all intellectual and other property rights to the index, including the name, the composition and the calculation of the index. AEX and AEX-Index are registered trademarks of Euronext. 3

3. PUBLICATION 3.1 DISSEMINATION OF INDEX VALUES 3.1.1 Opening The opening level is calculated using the last known prices of traded constituents or in the case of constituents that have non-traded, halted or suspended status, the previous day reference prices or estimated prices (for IPOs, buyouts and swap offers). The official opening level is the first level published after a share price is available for all constituents. Index levels published before the official opening level is published are considered pre-opening index levels. If, for whatever reason, share prices are not available for all constituents five minutes after Euronext Markets (as defined in the Euronext harmonised rule book) started regular daytime trading, the official opening level will be published as soon as the companies whose share prices are available of the current trading day represent at least 80% of the value of the index at the close of the previous trading day. 3.1.2 Calculation and dissemination The index is calculated based on the most recent prices of transactions concluded on Euronext Markets. The level of the index is in principle published every 15 seconds. The index is calculated from 09:00 hours until Euronext Markets stop regular daytime trading on the days when the Euronext Markets are open for trading. 3.1.3 Closing level The closing level is the last level disseminated on the trading day. 3.2 EXCEPTIONAL MARKET CONDITIONS AND CORRECTIONS The Compiler retains the right to delay the publication of the opening level of the index. Furthermore, the Compiler retains the right to suspend the publication of the level of the index to mark the level of the index indicative if it believes that circumstances prevent the proper calculation of the index. If prices are cancelled, the index will not be recalculated unless the Compiler decides otherwise. If the index remains in pre-opening phase during the entire trading session, the last published pre-opening level of the index will be used as the official closing level of the index for that day. In such cases, the Compiler will not calculate an official opening level for the index. 3.3 ANNOUNCEMENT POLICY The announcement policy is described in the Euronext Indices Announcement policy document that is available on indices.euronext.com/index-rules. 4

4. CALCULATION 4.1 CALCULATION OF THE PRICE INDEX The index is calculated on a price return basis. The calculation is based on the current Free Float (see section 8. Definitions) market capitalization divided by the divisor. The divisor was determined on the initial capitalization base of the index and the base level. The divisor is adapted as a result of corporate actions and composition changes. 4.2 CURRENCY CONVERSION The base currency of the index is Euro ( Base Currency ). Share prices that are quoted in other currencies than the Base Currency will be converted to the Base Currency using the last known exchange rate observed on Reuters. Closing prices will be converted based on the most recent WM/Reuters spot rates, which are published each business day around 17:00 CET. 4.3 TOTAL RETURN INDEX CALCULATION 4.3.1 Return indices A net total return index as well as a gross total return index, is calculated and disseminated at the same frequency as the price index. The return indices are obtained by reinvesting the net and gross dividends respectively. 4.3.2 Withholding tax rate The net dividend is calculated as the gross dividend minus the applicable withholding tax. A table detailing the percentages that are applied is available on the website of Euronext. 4.3.3 Ordinary dividends in shares If a dividend is distributed in the form of shares only and if this is regarded as ordinary dividend, the return index will be reinvesting a cash equivalent of the dividend. If shareholders may choose between cash or shares the amount which is reinvested will be based on the cash option. 4.3.4 Conversion of dividends declared in other currencies If a dividend for a constituent is declared in another currency than the Base Currency of the index, then the Compiler will in first instance use the Base Currency amount if investors have the option to be paid in that currency. If the dividend amount is available only in currencies that deviate from the Base Currency, the Compiler will convert the dividend amount using the reference rate for the cum-day (the business day prior to the ex-date). In principle the reference rate will be based on the foreign exchange reference rates as published daily by the ECB. 5

5. INDEX REVIEWS 5.1 GENERAL AIM AND FREQUENCY OF REVIEWS 5.1.1 General aim of the periodical review The general aim of the periodical review of the index is to ensure that the selection and weighting of the constituents continues to reflect the underlying market or market segment it represents. 5.1.2 Effective date of reviews The reviews become effective after the market close of the third Friday of March, June, September and December (quarterly reviews). 5.2 INDEX UNIVERSE AND SELECTION PRINCIPLE 5.2.1 Selection At each periodical review the companies that are expected to be included in the Underlying Index after the close of the business day on the date of the periodical adjustment, are selected for the index. 5.2.2 Selected line As only one listing the most active one - is permitted per company, the listing representing the company s ordinary shares is generally used. 5.3 PERIODICAL UPDATE OF WEIGHTING 5.3.1 Update of number of shares At reviews, the number of shares included in the index will be updated with the current number of shares that will be included in the Underlying Index. 5.3.2 Free Float Free float factors are identical to the Underlying Index. 5.3.3 Capping At quarterly reviews the capping factors are calculated such that each constituent will have an maximum weight in the index according to the following scheme: The weighting of each constituent is subject to a maximum of 9% and the total weighting of all companies with a weighting over 4.5% is maximum 36%. The capping percentages are based on the closing prices of the Review Composition Announcement Date of the Underlying Index. 6

6. CORPORATE ACTIONS 6.1 GENERAL The index may be adjusted in order to maintain the continuity of the index level and the composition. The underlying aim is that the index continues to reflect as closely as possible the value of the underlying portfolio. Adjustments take place in reaction to events that occur with constituents in order to mitigate or eliminate the effect of that event on the index. All adjustements follow the treatment in the Underlying Index, which are described hereafter for information purposes. 6.2 REMOVAL OF CONSTITUENTS Constituents which are removed from the Underlying Index will be removed simultaneously from the index. If a company is removed from the index, the divisor will be adapted to maintain the index level. 6.2.1 Mergers and acquisitions If the effect of a merger or takeover is that one constituent is absorbed by another constituent the resulting company will remain a constituent of the index. If the merger offer takes place in the form of shares, the shares of the target will be replaced by the shares of the acquirer in accordance with the terms of the offer, unless the acquirer won t be included in the Underlying Index. Constituents which are removed from the Underlying Index will be removed simultaneously from the index. Companies which are added to the composition of the underlying index or which are re-entered after a temporary removal, will be added to the index simultaneously. 6.2.2 Delistings, suspensions and company distress Constituents which are removed from the Underlying Index will be removed simultaneously from the index. The company will be deleted from the index based on either the last known price established during regular daytime trading or else a price determined by the Compiler, whereby the company may also be deleted at EUR 0. 6.2.3 Pricing sources In the event that the trading in shares is suspended, the last known price established during regular daytime trading will be used. 6.3 SPLIT UP / SPIN-OFF In the event that a company included in the index is split up, the companies resulting from the split, including the original company where appropriate will continue to be included in the index providing they still qualify as an eligible company in their own right. The index may then temporarily consist of fewer than, or more than the normal number of companies until the next periodical review takes place. For the purposes of these rules a split up is taken to mean a legal demerger, a spin-off or another situation which the Compiler deems to be similar. In case the shareholder of the company which was originally included in the index does not automatically receive shares in a company which is created as a result of the split up, this company is considered to be a newly listed company. The removal of any non-qualifying company resulting from a split up will take place after the close of the first day of trading in the shares of that company. If all companies resulting from the split are to be removed, the removal will take place at the close of the last trading day before the split. 6.4 EARLY INCLUSION OF NON-CONSTITUENTS As a rule newly listed companies are considered for inclusion in the Underlying Index at the time of the periodical index rebalancing. 7

6.5 DIVIDENDS 6.5.1 Distinction ordinary and special dividend The price index will be adjusted for dividends that are special. The following criteria will be applied to decide whether a dividend should be considered a special dividend: a) The declaration of a company of a dividend additional to those dividends declared as part of the company s normal results and dividend reporting cycle; merely an adjustment to the timing of the declaration of a company's expected dividend would not be considered as a special dividend circumstance; or b) The identification of an element of a dividend paid in line with a company s normal results and dividend reporting cycle as an element that is unambiguously additional to the company s normal payment. For the purpose of clarification, no adjustment will be made for the following situations: 1. Payment of ordinary dividends, irrespective of how they are financed; 2. Issue of redeemable shares or any other entitlement in lieu of an ordinary dividend; or 3. Unexpected increase or decrease, resumption or cessation, or change in frequency to an ordinary dividend. 6.5.2 Adjustment for special dividend The adjustment of the index takes place by a reduction of the closing price of the share in question. Subsequently the divisor will be adapted in order to maintain the index level. The adjustments will be based on gross amounts. 6.6 RIGHTS ISSUES AND OTHER RIGHTS In the event of a rights issue the new shares will be included in the index on the ex-date of the rights issue and an adjusted closing price will be applied as calculated by the Compiler. The adjustment will be made based on the shares currently in the index. The divisor will be adapted in such a way that the level of the index remains the same. The new shares are only added if less than 0.4 share is issued for every share that is currently held and if the new shares are fungible with the existing line of shares (e.g. no dividend disadvantage). Otherwise the index is adjusted based on the value of the rights only. The index will be adjusted only if the rights represent a positive value. The index will also be adjusted if a value can be attributed to a subscription right for convertible bonds, bonds with warrants or warrants with preferential rights for shareholders or similar situations. 6.7 BONUS ISSUES, STOCK SPLITS AND REVERSE STOCK SPLITS For bonus issues, stock splits and reverse stock splits, the number of shares included in the index will be adjusted in accordance with the ratio given in the corporate action. The divisor will not be changed because of this. The Compiler may regard a bonus issue as the issue of an entitlement in lieu of an ordinary dividend and therefore treat this in accordance with 6.5.1. 6.8 CHANGES IN NUMBER OF SHARES OR FREE FLOAT In between the annual reviews the number of shares included in the index and Free Float factors will remain unchanged. 8

7. INDEX CALCULATION FORMULAS The general formula for the price index is: I N Q F C X i, t i, t i, t i, t i, t i t 1 d t f Where: t Time of calculation N Number of constituent equities in index Q i,t Number of shares of equity i included in the index on day t F i,t Free Float factor of equity i 1 f i,t Capping factor of equity i 1 C i,t Price of equity i on t X i,t Current exchange rate on t 1 Divisor of the index on day t d t The total return index calculation takes two steps: the first step is to transpose the announced dividend payment into index points. This is called the XD adjustment. This uses the following formula: N g i * w i XD adjustment d i 1 Where: N Number of constituent equities in index g i The announced dividend per share of the i th component stock (for net return index withholding tax is deducted from this dividend); w i The weighting of the i th component stock in the index, based on number of shares included in the index, Free Float factor, capping factor and exchange rate; d Divisor of the index. The second step of the calculation uses the figures calculated in step one (XD adjustment). The dividend is assumed to be reinvested at the close of the ex-date. TR t TR t-1 IVt XD IVt-1 Where: TR t-1 : Total return index value yesterday; TR t : Total return index value on t; IV t-1 : Underlying price index yesterday; IV t : Underlying price index on t; 1 Factor is equal to 1 if not applied for the index 9

8. DEFINITIONS 8.1 AEX STEERING COMMITTEE Committee consisting of independent persons which acts as supervisor to the (underlying) index and to which all decisions regarding supplementing, amending, revising or withdrawing these rules are submitted for approval. The composition and responsibilities of the AEX Steering Committee are laid down in the Rules of Procedure document that is available on the website www.euronext.com. 8.2 COMPILER Committee of Euronext officials appointed by Euronext. 10